code: def setUp(self):
      pass
  
file_path: medpy/tests/filter_/image.py
imports: import unittest
  import numpy
  from medpy.filter.image import ssd, sls, sum_filter, average_filter
  from scipy.ndimage import gaussian_filter
label_desc: Use image node_id 1 for calling the TestMetrics obj's underlying member method code with example usage: obj.setUp() without return types